The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 0 |
| 3 | 8 |
| 4 | 83 |
| 5 | 32 |
| 6 | 922 |
| 7 | 128 |
| 8 | 7330 |
| 9 | 512 |
| 10 | 0 |
| 11 | 2048 |
| 12 | 1075174 |
| 13 | 8192 |
| 14 | 0 |
| 15 | 32768 |
| 16 | 86486662 |
| 17 | 131072 |
| 18 | 776413846 |
| 19 | 524288 |
| 20 | 0 |
| 21 | 2097152 |
| 22 | 0 |
| 23 | 8388608 |
| 24 | 0 |
| 25 | 33554432 |
| 26 | 0 |
| 27 | 134217728 |
| 28 | 183016755558795 |
| 29 | 536870912 |
| 30 | 1029465324149666 |
| 31 | 2147483648 |
[2,0,8,83,32,922,128,7330,512,0,2048,1075174,8192, 0,32768,86486662,131072,776413846,524288,0, 2097152,0,8388608,0,33554432,0,134217728, 183016755558795,536870912,1029465324149666, 2147483648] |